Out[3]:

Pretest 3: Variable

What you will learn:

  • Definition of variables
  • Evaluating single variable
  • Evaluating multiple variable
  • Operating variables with coefficient

Table of Contents


3.1 Introduction to Variables

Source: Khan Academy

What is a variable?

Out[4]:

Why aren't we using the multiplication sign?

Out[5]:

Evaluating an expression with one variable

Out[6]:

3.2 Substitution and evaluating expressions

Evaluating expressions with two variables

Out[7]:

Evaluating expressions with two variables: fractions & decimals

Out[8]:

3.3 Combining like terms

Intro to combining like terms

Out[9]:

Combining like terms with negative coefficients & distribution

Out[10]:

Combining like terms with negative coefficients

Out[11]:

Combining like terms with rational coefficients

Out[12]:

Home | Kurikulum | Karir
Algoritma Cerdas Indonesia © 2020